package com.woniuxy.controller;

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.alibaba.fastjson.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.woniuxy.configuration.AlipayConfig;
import com.woniuxy.service.AlipayService;
import com.woniuxy.service.OrdersService;
import com.woniuxy.service.impl.OrdersServiceImpl;
import com.woniuxy.utils.Result;

import lombok.SneakyThrows;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import lombok.SneakyThrows;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import java.util.Date;
import java.util.Iterator;

@RestController
@RequestMapping("/alipay")
public class AlipayController {
	@Autowired
	private AlipayService alipayService;
	@Autowired
	private OrdersService ordersService;

	private String subject;

	@SneakyThrows
	@RequestMapping("/pay")
	public void pay(HttpServletRequest request, HttpServletResponse response) throws IOException, AlipayApiException {
		// 获得初始化的AlipayClient
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id,
				AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key,
				AlipayConfig.sign_type);

		// 设置请求参数
		AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
		alipayRequest.setReturnUrl(AlipayConfig.return_url);
		alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

		// 商户订单号，商户网站订单系统中唯一订单号，必填
		String out_trade_no = new String(request.getParameter("WIDout_trade_no"));
		// 付款金额，必填
		String total_amount = new String(request.getParameter("WIDtotal_amount"));
		// 订单名称，必填
		subject = new String(request.getParameter("WIDsubject"));

		System.out.println("out_trade_no" + out_trade_no);
		System.out.println("total_amount" + total_amount);
		System.out.println("subject" + subject);

		alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\"," + "\"total_amount\":\"" + total_amount
				+ "\"," + "\"subject\":\"" + subject + "\"," + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

		// 请求
		String result = alipayClient.pageExecute(alipayRequest).getBody();

		// 输出
		response.getWriter().println(result);
	}

	@SneakyThrows
	@RequestMapping("/notify_url")
	protected void notify_url(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		System.out.println("notify_url");
		Map<String, String> params = new HashMap<String, String>();
		Map<String, String[]> requestParams = request.getParameterMap();

		for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
			String name = (String) iter.next();
			String[] values = (String[]) requestParams.get(name);
			String valueStr = "";
			for (int i = 0; i < values.length; i++) {
				valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
			}
			// 乱码解决，这段代码在出现乱码时使用
			valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
			params.put(name, valueStr);
		}

		boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset,
				AlipayConfig.sign_type); // 调用SDK验证签名

		// ——请在这里编写您的程序（以下代码仅作参考）——

		/*
		 * 实际验证过程建议商户务必添加以下校验： 1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
		 * 2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额）， 3、校验通知中的seller_id（或者seller_email)
		 * 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
		 * 4、验证app_id是否为该商户本身。
		 */
		if (signVerified) {// 验证成功
			// 商户订单号
			String out_trade_no = new String(request.getParameter("out_trade_no"));

			// 支付宝交易号
			String trade_no = new String(request.getParameter("trade_no"));

			// 交易状态
			String trade_status = new String(request.getParameter("trade_status"));

			if (trade_status.equals("TRADE_SUCCESS")) {
				// 调用service修改订单状态
				// 获得订单id
				System.out.println("支付完成");
				int id = new Integer(subject);
				// 修改订单状态
				ordersService.updataTime(id);

			}

			response.getWriter().println("success");

		} else {// 验证失败
			response.getWriter().println("fail");

			// 调试用，写文本函数记录程序运行情况是否正常
			// String sWord = AlipaySignature.getSignCheckContentV1(params);
			// AlipayConfig.logResult(sWord);
		}
	}

	// 同步通知：通常用来进行页面跳转
	@RequestMapping("/return_url")
	private void return_url(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.sendRedirect("/index.html");
		System.out.println("进行页面跳转");

	}

	/**
	 * web 订单支付
	 */
	@GetMapping("getPagePay")
	public Map<Object, Object> getPagePay() throws Exception {
		/** 模仿数据库，从后台调数据 */
		String outTradeNo = "19960310621211";
		Integer totalAmount = 1;
		String subject = "苹果28";

		String pay = alipayService.webPagePay(outTradeNo, totalAmount, subject);
		System.out.println(pay);

		Map<Object, Object> pays = new HashMap<>();
		pays.put("pay", pay);

		return pays;
	}

	/**
	 * app 订单支付
	 */
	@GetMapping("getAppPagePay")
	public Result<Object> getAppPagePay() throws Exception {
		/** 模仿数据库，从后台调数据 */
		String outTradeNo = "131233";
		Integer totalAmount = 1000;
		String subject = "天猫超市012";

		String pay = alipayService.appPagePay(outTradeNo, totalAmount, subject);

		System.out.println(pay);

		Result result = new Result().setMessage(Result.SUCCESS);
		result.setData(pay);

		return result;
	}

	/**
	 * 交易查询
	 */
	@PostMapping("aipayQuery")
	public Result<Object> alipayQuery() throws Exception {
		/** 调取支付订单号 */
		String outTradeNo = "13123";

		String query = alipayService.query(outTradeNo);

		System.out.println(query);

		Result result = new Result().setMessage(Result.SUCCESS);
		result.setData(query);

		return result;
	}

	/**
	 * 退款
	 * 
	 * @throws AlipayApiException
	 */
	@GetMapping("alipayRefund")
	public Result<Object> alipayRefund(@RequestParam("outTradeNo") String outTradeNo,
			@RequestParam(value = "outRequestNo", required = false) String outRequestNo,
			@RequestParam(value = "refundAmount", required = false) Integer refundAmount) throws AlipayApiException {

		/** 调取数据 */
		// String outTradeNo = "15382028806591197";
		String refundReason = "用户不想购买";
		// refundAmount = 1;
		// outRequestNo = "22";

		String refund = alipayService.refund(outTradeNo, refundReason, refundAmount, outRequestNo);

		System.out.println(refund);

		Result result = new Result().setMessage(Result.SUCCESS);
		result.setData(refund);

		return result;
	}

	/**
	 * 退款查询
	 * 
	 * @throws AlipayApiException
	 */
	@PostMapping("refundQuery")
	public Result<Object> refundQuery() throws AlipayApiException {

		/** 调取数据 */
		String outTradeNo = "13123";
		String outRequestNo = "2";

		String refund = alipayService.refundQuery(outTradeNo, outRequestNo);

		System.out.println(refund);

		Result result = new Result().setMessage(Result.SUCCESS);
		result.setData(refund);

		return result;

	}

	/**
	 * 交易关闭
	 * 
	 * @throws AlipayApiException
	 */
	@PostMapping("alipayclose")
	public Result<Object> alipaycolse() throws AlipayApiException {

		/** 调取数据 */
		String outTradeNo = "13123";

		String close = alipayService.close(outTradeNo);

		System.out.println(close);

		Result result = new Result().setMessage(Result.SUCCESS);

		result.setData(close);

		return result;
	}

}
